Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050) |
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06/03/1999 | WO1999027667A1 Radio receiver with two tuners and a switch for verifying reception quality at an alternative frequency |
06/03/1999 | WO1999017491A3 Communications system for multichannel transmission with carrier modulation |
06/02/1999 | EP0920208A1 Method and apparatus for gathering program watched data |
06/02/1999 | EP0920207A1 Interactive terminal for television delivery system |
06/02/1999 | EP0920206A1 Advanced set top terminal with electronic mailbox for cable television delivery systems |
06/02/1999 | DE19749120A1 Satellite reception installation with associated data bus |
06/02/1999 | CN1218334A Scalable stereo audio encoding/decoding method and apparatus |
06/01/1999 | US5909664 Method and apparatus for encoding and decoding audio information representing three-dimensional sound fields |
06/01/1999 | US5909439 Satellite communications system |
06/01/1999 | US5909184 Display information receiving device |
06/01/1999 | US5909063 Switchable or automatically terminating connecting device and combination thereof |
05/27/1999 | WO1999026368A1 Signaling protocol for satellite direct radio broadcast system |
05/27/1999 | WO1999026367A1 Broadcast network selection techniques for hybrid radiocommunication systems comprising both a cellular communication system and a radio broadcast system |
05/27/1999 | WO1998047249A9 Passenger aircraft entertainment system |
05/27/1999 | CA2309683A1 Signaling protocol for satellite direct radio broadcast system |
05/26/1999 | EP0918423A2 Mobile phone for Internet applications |
05/26/1999 | EP0918407A2 Scalable stereo audio encoding/decoding method and apparatus |
05/26/1999 | EP0917804A1 Television distribution system for signal substitution |
05/25/1999 | US5907827 Channel synchronized audio data compression and decompression for an in-flight entertainment system |
05/25/1999 | US5907793 Telephone-based interactive broadcast or cable radio or television methods and apparatus |
05/25/1999 | US5907582 System for turbo-coded satellite digital audio broadcasting |
05/25/1999 | US5907544 For controlling a common channel wireless access premises area network |
05/20/1999 | WO1999025083A1 A method and arrangement for wireless data transmission |
05/20/1999 | DE19751189A1 Radio receiver with receiver quality check e.g. for vehicle radios |
05/20/1999 | CA2309119A1 A method and arrangement for wireless data transmission |
05/19/1999 | EP0917380A2 Information transmission control apparatus for transmitting same information to a plurality of destinations, and information reception apparatus for receiving information from information transmission control apparatus |
05/19/1999 | EP0917370A2 Signal processing device and method for switching signal processors therefor |
05/19/1999 | EP0917367A1 Data distribution system, distribution equipment, terminal equipment, and data distribution method |
05/19/1999 | EP0917122A2 Transmitting/receiving system for rescue vehicles |
05/19/1999 | EP0916223A1 Return path ingress noise measurement system |
05/19/1999 | EP0916200A2 Testing facility for a broadband communications system |
05/19/1999 | CN1217108A Process for designing transport data stream |
05/18/1999 | US5905865 For connecting a computer with one or more on-line services |
05/18/1999 | US5905741 Data error correcting method for digital signal frames and apparatus used in the method |
05/18/1999 | US5905523 Interactive system |
05/18/1999 | CA2090159C Method and apparatus for coding audio signals based on perceptual model |
05/14/1999 | WO1999023660A1 Recording and reproducing apparatus provided with teletext recording capability |
05/12/1999 | EP0915617A2 Relaying information and information repeater system |
05/12/1999 | EP0914729A1 Audiophonic communication system using a multiplex audiodigital bus |
05/12/1999 | EP0740866B1 A telecommunication system |
05/11/1999 | US5903824 RDS-TMC broadcast receiver which substitutes phonetic characters for non-convertible characters prior to synthesizing speech |
05/11/1999 | US5903617 Method and system for providing synchronization in a stream of messages and a transmitter and a receiver for use in such a system |
05/11/1999 | US5903598 Method and system for simultaneously broadcasting and receiving digital and analog signals |
05/11/1999 | CA2117254C Simulcast synchronization and equalization system and method therefor |
05/11/1999 | CA2106919C Communication system |
05/06/1999 | EP0914002A2 Apparatus for receiving digital broadcast signal and apparatus for recording and reproducing digital broadcast information included in the digital broadcast signal |
05/06/1999 | EP0913974A1 Method to create a send planning for multimedia data |
05/05/1999 | CN1216178A Data compression/expansion on plurality of digital information signals |
05/04/1999 | US5901360 Automatic adjustment delay technique for simulcast of paging system |
05/04/1999 | US5901339 Pay broadcasting system |
05/04/1999 | US5900608 Method of purchasing personal recording media, system for purchasing personal recording media, and media recorded with personal recording media purchasing program |
04/29/1999 | WO1999021186A1 Global access system of multi-media related information |
04/28/1999 | EP0912059A2 Terminal with multiple audio and video |
04/28/1999 | EP0912058A2 Method and apparatus for providing broadcast data services |
04/28/1999 | EP0912003A2 Receiver for Digital Audio Broadcast with a means for selecting broadcast messages in an audio broadcast |
04/28/1999 | EP0912002A2 Method for storing broadcast transmission frequency data in a memory of a broadcast receiver |
04/28/1999 | EP0911981A2 Method and device for coding/decoding an audio signal |
04/28/1999 | CN1215272A Pata distribution system, equipment, terminal equipment and distribution method |
04/27/1999 | US5898732 Data service channel provision for an AM compatible broadcast system |
04/27/1999 | US5898693 Spectrum manager for communication network |
04/27/1999 | US5898398 Remote control device and remote control method |
04/22/1999 | WO1999020017A1 Method and system for assessing, at reception level, the quality of a digital signal, such as a digital audio/video signal |
04/22/1999 | WO1999020007A1 A system and method for mitigating intermittent interruptions in an audio radio broadcast system |
04/21/1999 | EP0910218A2 Audio program reception terminal for television delivery system |
04/21/1999 | EP0910208A2 Digital broadcast receiving system |
04/21/1999 | CN1214837A Two-way interactive television system |
04/21/1999 | CN1214825A Game machine system, broadcasting system, data distribution system and its method, and program executing device and its method |
04/20/1999 | US5896560 Transmit control system using in-band tone signalling |
04/20/1999 | US5896555 Multiplex broadcasting of audio-video programs with DTMF signals |
04/20/1999 | US5896554 Status monitoring apparatus for car radio |
04/20/1999 | US5896414 Method and apparatus for providing control channel communications for an information distribution system |
04/20/1999 | US5896215 Multi-channel system with multiple information sources |
04/20/1999 | CA2117451C Method for sending and receiving video images |
04/15/1999 | WO1999018761A2 Device for wireless transmission of digital data especially audio data |
04/15/1999 | WO1999018720A1 Encoded stream splicing device and method, and an encoded stream generating device and method |
04/15/1999 | WO1999018684A1 Interactive digital data broadcasting system |
04/15/1999 | WO1999018518A2 Internet based musical indexing system for radio |
04/15/1999 | WO1999008391A3 Method, mobile station and telecommunication system for generating an adaptation to a process for accessing a radio interface supported by a mobile radiotelephone network |
04/15/1999 | WO1998056106A3 Method and apparatus for improving classroom amplification systems and other rf-type amplification systems |
04/15/1999 | WO1998035495A8 Multichannel television sound stereo and surround sound encoder |
04/15/1999 | DE19744420A1 Method of transmitting information in a common wave network, esp. for networks with narrowly regionally limited interests |
04/14/1999 | EP0909095A1 Reprogrammable terminal for suggesting programs offered on a television program delivery system |
04/14/1999 | EP0909070A2 Virtual web server for concurrently displaying data coming from a plurality of servers in a single browser window |
04/14/1999 | CN1214164A Method and system for communication of control information from control information generator to one or more computer installations |
04/14/1999 | CN1213911A Selection of traffic capable station by RDS radio while listening to other media |
04/14/1999 | CN1213902A RDS ratio with multi-function RDS button |
04/13/1999 | US5894119 Device for enabling listeners to preview music recordings |
04/08/1999 | WO1999017503A1 Method and apparatus for facilitating establishment of communications in a messaging system |
04/08/1999 | WO1999017491A2 Communications system for multichannel transmission with carrier modulation |
04/08/1999 | WO1998045835A3 System for selective distribution of music |
04/08/1999 | DE19743327A1 Method of transmitting information to mobile part of cellular mobile radio system |
04/07/1999 | EP0907265A2 RDS broadcast receiver with a memory for alternative frequencies and method for memory management |
04/07/1999 | EP0906672A1 Low power microcellular wireless drop interactive network |
04/07/1999 | CN1213472A Process and system for OFDM multi-carrier transmission of digital radio signals |
04/07/1999 | CN1213252A Information providing receiving apparatus and method, information providing system, and transmission medium |
04/07/1999 | CN1213234A Wireless information communication method and its device |
04/01/1999 | WO1999016246A2 Pay-per-view program access control system |
04/01/1999 | WO1998058494A3 System for the bidirectional communication of voice and data through a distribution network |
04/01/1999 | WO1998018230A9 Audio decoder with an adaptive frequency domain downmixer |
04/01/1999 | DE19743167A1 Kommunikationssystem Communication system |